<s>
Sid	O
Meier	O
's	O
Railroad	B-Application
Tycoon	I-Application
is	O
a	O
business	B-Application
simulation	I-Application
designed	O
by	O
Sid	O
Meier	O
.	O
</s>
<s>
The	O
game	O
is	O
the	O
first	O
in	O
the	O
Railroad	B-Application
Tycoon	I-Application
series	O
.	O
</s>
<s>
An	O
expanded	O
version	O
of	O
the	O
game	O
titled	O
Sid	O
Meier	O
's	O
Railroad	B-Application
Tycoon	I-Application
Deluxe	O
,	O
was	O
released	O
in	O
1993	O
.	O
</s>
<s>
A	O
port	O
of	O
the	O
game	O
for	O
the	O
Super	B-Application
NES	I-Application
was	O
planned	O
for	O
a	O
1994	O
release	O
,	O
and	O
screenshots	O
were	O
shown	O
in	O
the	O
March	O
1993	O
issue	O
of	O
Nintendo	B-Application
Power	I-Application
;	O
however	O
the	O
port	O
was	O
never	O
released	O
.	O
</s>
<s>
Though	O
no	O
reason	O
was	O
officially	O
given	O
,	O
it	O
may	O
have	O
been	O
due	O
to	O
the	O
DOS	B-Device
release	O
of	O
Transport	B-Application
Tycoon	I-Application
,	O
and	O
its	O
planned	O
release	O
on	O
the	O
then-upcoming	O
PlayStation	B-Device
console	I-Device
.	O
</s>
<s>
Likewise	O
,	O
a	O
Sega	B-Operating_System
Mega	I-Operating_System
Drive	I-Operating_System
version	O
was	O
also	O
planned	O
but	O
never	O
released	O
.	O
</s>
<s>
The	O
DOS	B-Device
version	O
of	O
the	O
game	O
was	O
released	O
as	O
freeware	B-License
for	O
download	O
in	O
2006	O
.	O
</s>
<s>
Railroad	B-Application
Tycoon	I-Application
sold	O
more	O
than	O
400,000	O
units	O
by	O
September	O
1997	O
.	O
</s>
<s>
In	O
the	O
September	O
1990	O
edition	O
of	O
Computer	O
Gaming	O
World	O
,	O
Railroad	B-Application
Tycoon	I-Application
was	O
named	O
Game	O
of	O
the	O
Year	O
.	O
</s>
<s>
In	O
the	O
December	O
1990	O
edition	O
of	O
PC	O
Sources	O
,	O
Russ	O
Lockwood	O
called	O
Railroad	B-Application
Tycoon	I-Application
one	O
of	O
the	O
best	O
games	O
of	O
the	O
year	O
.	O
</s>
<s>
In	O
the	O
January	O
1991	O
and	O
October	O
1991	O
issues	O
of	O
Dragon	O
,	O
Patricia	O
and	O
Kirk	O
Lesser	O
awarded	O
both	O
the	O
PC	O
version	O
and	O
the	O
Macintosh	B-Device
version	O
perfect	O
scores	O
of	O
5	O
out	O
of	O
5	O
.	O
</s>
<s>
In	O
1991	O
,	O
PC	O
Format	O
named	O
Railroad	B-Application
Tycoon	I-Application
one	O
of	O
the	O
50	O
best	O
computer	O
games	O
ever	O
.	O
</s>
<s>
In	O
1996	O
,	O
Computer	O
Gaming	O
World	O
declared	O
Railroad	B-Application
Tycoon	I-Application
the	O
41st-best	O
computer	O
game	O
ever	O
released	O
.	O
</s>
